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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
---|---|
1023 | function wp_check_post_lock( $post_id ) { |
1024 | global $current_user; |
1025 |
|
1026 | if ( !$post = get_post( $post_id ) ) |
1027 | return false; |
1028 |
|
1029 | $lock = get_post_meta( $post->ID, '_edit_lock', true ); |
1030 | $last = get_post_meta( $post->ID, '_edit_last', true ); |
1031 |
|
1032 | $time_window = apply_filters( 'wp_check_post_lock_window', AUTOSAVE_INTERVAL * 2 ); |
1033 |
|
1034 | if ( $lock && $lock > time() - $time_window && $last != $current_user->ID ) |
1035 | return $last; |
1036 | return false; |
1037 | } |
1038 |
|
1039 | /** |
1040 | * {@internal Missing Short Description}} |
1041 | * |